CPU, RAM, Memory

Published on Jan 04, 2026
Updated on Jan 04, 2026
reading time

Main hardware components: processor (cpu) inserted in the socket and ram memory sticks on a motherboard.

Buying a new smartphone can seem like a complex undertaking. We are faced with acronyms like CPU, RAM, and memory, numbers and technical specifications that often mean little to the average user. Yet, just as an expert craftsman recognizes the quality of their tools, understanding these three fundamental elements allows you to choose the device best suited to your needs with awareness. It is not about becoming computer technicians, but acquiring practical knowledge so as not to be guided solely by design or price. In a market, like the Italian and European one, where technology is an integral part of daily life, making an informed choice means investing your money well and ensuring a satisfying and lasting user experience.

This article was created to provide clarity. We will explain in simple terms what the CPU, RAM, and storage memory are, using analogies that tie into our culture. Think of preparing a traditional dish: every ingredient has a precise role, and the balance between them determines the success of the recipe. Similarly, in a smartphone, these three components work in synergy to offer fluid and responsive performance. Our goal is to provide you with the tools to decipher technical sheets and understand what really hides behind the numbers, guiding you toward a choice that combines technological innovation and personal needs.

Advertisement

The Brain of the Device: What is the CPU

The CPU (Central Processing Unit), or processor, is for all intents and purposes the brain of our smartphone. It is the component that performs calculations, processes commands, and manages every operation, from opening an app to browsing the web. Let’s imagine it as the chef of a starred kitchen: the faster and more skilled they are, the more quickly and masterfully they will be able to prepare complex dishes. Its power is measured primarily in Gigahertz (GHz), which indicates the speed at which it executes instructions, and in the number of cores, i.e., the calculation units. A multi-core processor is like a brigade of multiple chefs working in parallel, allowing the device to handle multiple activities simultaneously (multitasking) without slowdowns.

In the current market, dominated by giants like Qualcomm (with its Snapdragons), Apple (with Bionic chips), and MediaTek, the trend is to integrate increasingly powerful processors, even in mid-range devices. This serves not only for the most demanding games but also to manage the growing functionalities related to artificial intelligence, which are becoming a standard. When evaluating a new phone, a more recent and high-performance processor guarantees not only greater fluidity in daily use but also better longevity of the device, capable of supporting future updates and more complex applications.

Discover more →

Short-Term Memory: What RAM Is For

If the CPU is the chef, the RAM (Random Access Memory) is their workbench. It is an ultra-fast but volatile memory, which means it «forgets» everything when an app is closed or the phone is turned off. Its purpose is to keep close at hand all the data and instructions the CPU needs in real-time: the operating system, running apps, and background processes. Having more RAM means giving the chef a larger workbench, allowing them to manage more ingredients and preparations simultaneously without getting confused or having to retrieve utensils from the warehouse. This translates into smoother multitasking: you can switch from WhatsApp to Google Maps and then to a game without the apps reloading from scratch.

But how much RAM do we really need in 2025? For basic use, such as calls, messages, and social media, 4 GB or 6 GB may be sufficient. However, for an optimal and future-proof user experience, it is advisable to look for models with at least 8 GB of RAM. The most demanding users, such as gamers or those who use their smartphone for work, will benefit from 12 GB or even 16 GB, which guarantee impeccable performance even with the heaviest apps and new artificial intelligence features. Remember, a good amount of RAM is an investment in the responsiveness and speed of your device over time.

Discover more →

The Digital Archive: Storage Memory

Advertisement
Smartphone hardware components focusing on CPU and RAM
Understanding technical specifications allows you to choose the ideal smartphone for your needs.

While RAM is short-term memory, storage memory (often erroneously called ROM) is the permanent archive of your smartphone. It is the warehouse, the pantry where you keep everything you want to maintain over time: photos, videos, documents, applications, and operating system files. Unlike RAM, this memory is not volatile; data remains saved even when the phone is turned off. The capacity of this archive is measured in Gigabytes (GB), and today the minimum standard to avoid running into difficulties after a few months is 128 GB. For those who take many high-resolution photos, record videos, or download many games, it is wise to consider sizes of 256 GB or 512 GB.

In addition to capacity, the speed of internal memory is also important, as it affects app loading times and file saving. Newer technologies, such as UFS (Universal Flash Storage), guarantee superior performance. Another aspect to consider, especially on Android devices, is the possibility of expanding memory via a microSD card, a flexible and economical solution to increase available space. This option, combined with increasingly widespread cloud storage services, offers great freedom in managing one’s data, combining the tradition of physical file possession with the innovation of the digital cloud.

Discover more →

Balance is Everything: How CPU, RAM, and Memory Work Together

The secret of a high-performance smartphone does not lie in a single exceptional component, but in the harmonious balance among CPU, RAM, and storage memory. Returning to our kitchen metaphor, it would be useless to have the fastest chef in the world (a powerful CPU) if they only had a small cutting board (little RAM) to work on. They would constantly be forced to stop to retrieve and put away ingredients in the large warehouse (storage memory), slowing down the entire process. Similarly, a huge workbench (lots of RAM) would be wasted if the chef were slow and clumsy (low-end CPU). The user experience would suffer, with stuttering and delays.

This synergy is fundamental to ensuring that the device responds promptly to our commands. A powerful CPU processes data quickly, adequate RAM allows managing multiple open apps effortlessly, and fast storage memory reduces waiting times for application startup. When choosing a new device, it is therefore essential not to be attracted by a single record-breaking number. It is wiser to opt for a model that offers a balanced configuration, in line with your usage habits. Good hardware balance is the true guarantee of a fluid, pleasant experience that lasts over time, just like a successful recipe where every flavor is in its place.

Choosing Wisely: Buying Tips

Choosing the perfect smartphone is strictly personal and depends on your habits. Before buying, ask yourself a few questions: do you use the phone mainly to communicate and browse, or are you a gaming and photography enthusiast? Do you work on the go and need to switch quickly between emails, documents, and video conferencing apps? The answer to these questions will help you understand which specification to focus on. For an average user, a device with 8 GB of RAM and 128 GB or 256 GB of internal memory represents the most balanced and future-proof choice today. If you are thinking of taking this step, a complete guide to choosing can offer further useful insights.

Don’t forget the software. Optimization between hardware and operating system is crucial. Apple, with its iOS, designs both aspects, often guaranteeing excellent performance even with technical specifications that are lower on paper than certain Android competitors. On the other hand, the Android world offers a vast choice of manufacturers and price ranges, allowing you to find a custom-made device. Also consider the battery, which must be adequate to support powerful components, and the display quality. Buying a new phone is an investment; also evaluate solutions like installment plans to access higher-end models, which guarantee greater longevity. To stay up to date on the latest news, visit our homepage.

  1. Evaluate CPU power

    Consider the CPU as the brain of the device. Look for recent multi-core processors to ensure speed and longevity, essential for handling complex apps and AI functions.

  2. Choose the right amount of RAM

    RAM is the workbench for multitasking. For fluid use in 2025, aim for at least 8 GB. If you are a gamer or use heavy apps, opt for 12 GB or 16 GB to avoid slowdowns.

  3. Determine storage space

    Internal memory keeps your data. Start with a minimum of 128 GB to avoid space issues. If you take many videos or download games, consider 256 GB or expansion via microSD.

  4. Look for hardware balance

    Don’t focus on a single high number. Ensure that CPU, RAM, and memory are balanced with each other to avoid bottlenecks and guarantee a fluid and responsive user experience.

  5. Analyze your personal needs

    Define your real usage: gaming, work, or basic. Don’t spend on useless specs, but invest in a configuration that reflects your daily habits and lasts over time.

  6. Consider software optimization

    Evaluate how the operating system manages hardware. Remember that well-optimized software (like iOS or clean Android interfaces) can maximize performance even with lower specs.

In Brief (TL;DR)

A simple guide to understanding what CPU, RAM, and memory are and how these three elements determine the real performance of a smartphone.

A guide to correctly interpreting technical data and evaluating the real performance of a device.

Together, these three elements determine the speed and fluidity of your device in everyday use.

Advertisement

Conclusions

disegno di un ragazzo seduto a gambe incrociate con un laptop sulle gambe che trae le conclusioni di tutto quello che si è scritto finora

Understanding the technical specifications of a smartphone, such as CPU, RAM, and storage memory, is not an exercise for insiders only, but a fundamental skill for every modern consumer. Knowing how to decipher these values means transforming a potentially confusing purchase into a conscious and targeted choice. It is no longer about blindly relying on the brand or advertising, but analyzing the device’s characteristics in relation to your unique needs. Whether you are a student, a professional, a creative, or simply a person who wants a reliable phone for everyday life, knowing the «engine» of your future smartphone will give you the power to choose the best.

In summary, the CPU is the brain that thinks, RAM is the workspace for multitasking, and internal memory is the archive for your digital memories. The harmony between these three elements is the key to obtaining a fluid and satisfying user experience. We hope this guide, with its analogies tied to our culture, has provided you with the tools to navigate the vast technology market with more confidence. Now you have the knowledge to look beyond the numbers and find not only a good product but the right digital companion for you, capable of combining tradition and innovation in the palm of your hand.

Frequently Asked Questions

disegno di un ragazzo seduto con nuvolette di testo con dentro la parola FAQ
How many Gigabytes of RAM are really needed for a smartphone in 2025?

The amount of RAM needed depends on how you use the phone. For basic use (calls, messages, social media), 6 GB may be sufficient. For a fluid and multitasking experience, 8 GB is the ideal choice for most users. If you are a gamer or a professional who uses heavy apps, aiming for 12 GB or more will guarantee optimal performance and greater device longevity.

Is the speed (GHz) or the number of cores more important in a CPU?

Neither is absolutely more important; balance counts. A modern processor with 8 well-optimized cores can perform better than an older one with 12 cores. Clock speed (GHz) indicates how fast a single core operates, while the number of cores indicates the ability to handle multiple tasks simultaneously. The real difference is made by the processor architecture: a modern and well-designed chip offers better performance and energy efficiency, regardless of individual numbers.

What is the real difference between RAM and storage memory?

Imagine RAM as a work desk and storage memory as a large archive. RAM is a fast and temporary memory where the phone keeps the apps and data currently in use. The more RAM you have, the more apps you can keep open without slowdowns. Storage memory (expressed in GB) is instead the permanent space where you save photos, videos, documents, and install apps. It is slower than RAM but keeps data even when the phone is turned off.

Is it worth spending more for a smartphone with UFS memory instead of eMMC?

Absolutely yes, especially if you are looking for fluidity and speed. UFS (Universal Flash Storage) memory is significantly faster than the older eMMC technology. This translates into faster app startup times, quicker installations, and snappier general file management. While eMMC can still be found on very low-end devices, UFS is the standard for a modern and responsive user experience.

Is a smartphone with lots of RAM but an old CPU a good choice?

Generally no. CPU, RAM, and storage memory must be balanced. Having a lot of RAM cannot compensate for a dated and underpowered CPU. The processor (CPU) is the brain that processes all operations; if it is slow, the entire system will suffer, causing freezes and a frustrating user experience, even with 12 GB of RAM. It is always better to choose a device with balanced components rather than one with a single oversized component at the expense of others.

Francesco Zinghinì

Electronic Engineer with a mission to simplify digital tech. Thanks to his background in Systems Theory, he analyzes software, hardware, and network infrastructures to offer practical guides on IT and telecommunications. Transforming technological complexity into accessible solutions.

Did you find this article helpful? Is there another topic you’d like to see me cover?
Write it in the comments below! I take inspiration directly from your suggestions.

Icona WhatsApp

Subscribe to our WhatsApp channel!

Get real-time updates on Guides, Reports and Offers

Click here to subscribe

Icona Telegram

Subscribe to our Telegram channel!

Get real-time updates on Guides, Reports and Offers

Click here to subscribe

Condividi articolo
1,0x
Table of Contents